RT8004A Просмотр технического описания (PDF) - Richtek Technology

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Компоненты Описание

производитель

RT8004A

4.5A, 4MHz, Synchronous Step-Down Regulator

Richtek Technology 

RT8004A

Reference Voltage vs. Temperature

0.820

0.815

0.810

0.805

VIN = 5V

0.800

0.795

VIN = 3.3V

0.790

0.785

0.780

-50 -25

VOUT = 1.2V, IOUT = 0.3A

0

25 50 75

Temperature (°C)

100 125

Output Ripple

VIN

(5V/Div)

VLX

(2V/Div)

IIN

(5A/Div)

Power On from VIN

VIN = 5V, VOUT = 3.3V, IOUT = 4.5A

Time (2.5ms/Div)

Output Ripple

VLX

(2V/Div)

VOUT

(10mV/Div)

VLX

(2V/Div)

VOUT

(10mV/Div)

VIN = 5V, VOUT = 3.3V, IOUT = 3A

Time (500ns/Div)

Load Transient Response

VIN = 5V, VOUT = 3.3V, IOUT = 0A

Time (500ns/Div)

Load Transient Response

VOUT

(100mV/Div)

VOUT

(100mV/Div)

IOUT

(5A/Div)

VIN = 5V, VOUT = 3.3V, IOUT = 0.1A to 3A

Time (100μs/Div)

IOUT

(5A/Div)

VIN = 5V, VOUT = 1.2V, IOUT = 0.1A to 3A

Time (100μs/Div)

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8

DS8004A-03 March 2011

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